Hi,
I want to increase the DTMF duration on MC series modem using at command AT+VTD= on WCDMA/3G network. Command executes fine but does not have any effect. The DTMF duration sent from module remain the same. Questions:
How to increase DTMF duration using SDK/AT command?
How to find what is the current DTMF duration and time between two DTMF tones?
@jyijyi Thanks. I have tried using these API. However, I am subscribing the DTMF event callback using SLQSVoiceSetDTMFEventCallBack() which occurs on the fixed interval. And, I like to tune that interval. any pointers?